Question

1. What type of lens do we use for reading?

2. What happens to light when it falls on shiny or polished surface?

3. Why does ray of light bend when it goes from one medium to another?

4. What is the relation between refractive index and optical density?

5. Why does a pond appear shallower than it is? ​

Answer 1

Answer:

1 => Convex lens we use for reading.

2=> When light falls on shiny surface of an object, it send back the light . This process is called reflection.

3 => When a ray of light goes from one medium to another, its speed change and this in speed of light causes the bending of light.

5 => As these rays get refractive into the air ,they bend away from the normal.

Answer 2

Answer:

1.convex lens

2.light gets reflected when it falls on any shinny or polished surface .

3.when the ray of light travels from one medium to another medium,it's speed changes and this causes the bending of light.

4.sorry, don't know the answer.

5.the pond appears shallower because of the rays getting refracted and bending away from the normal.